| 1 | <?php |
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| 7 | abstract class Widget implements WidgetInterface |
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| 8 | { |
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| 9 | /** |
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| 10 | * Whether or not user is authorized to view widget content. |
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| 11 | * |
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| 12 | * Widget child is authorized by default. |
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| 13 | * |
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| 14 | * @return bool |
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| 15 | */ |
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| 16 | 3 | public function authorize() |
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| 17 | { |
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| 18 | 3 | return true; |
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| 19 | } |
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| 20 | |||
| 21 | /** |
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| 22 | * String or content to display when the widget is not authorized. |
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| 23 | * |
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| 24 | * @return string |
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| 25 | */ |
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| 26 | 1 | public function notAuthorizedContent() |
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| 27 | { |
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| 28 | 1 | return '<!-- Not authorized. -->'; |
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| 29 | } |
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| 30 | |||
| 31 | /** |
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| 32 | * Method to echo out the widget result. |
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| 33 | * |
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| 34 | * @return mixed |
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| 35 | */ |
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| 36 | 5 | public function render() |
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| 37 | { |
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| 38 | 5 | if (! $this->authorize()) { |
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| 39 | 1 | return $this->notAuthorizedContent(); |
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| 40 | } |
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| 41 | |||
| 42 | 4 | $content = $this->content(); |
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| 43 | |||
| 44 | 4 | return $content instanceof View ? $content->render() : $content; |
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| 45 | } |
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| 46 | |||
| 47 | /** |
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| 48 | * Generate widget content. |
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| 49 | * |
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| 50 | * @return mixed |
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| 51 | */ |
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| 52 | abstract protected function content(); |
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| 53 | } |
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| 54 |